Smoke and spark conveyer for locomotives



'A UNITED STATES v PATENT EEICE@ SMOKE AND SPARK`CONVEYER FOR LOCOIVIOTIVES.

SPECIFICATION forming part of Letters Patent No. 369,050, dated August 30, 1887.

Application filed October 11, 1886. n Serial No. 215,942. (No model.)

To all whoml it may concern.-

Beit known that I, ORRIN FITZGERALD, Jr., a citizen of the United States, residing at Dexter, in the county of Penobscot and State of Maine, have invented lcertain Improve" My invention relates to certain improve' ments in that class of smoke and spark conv veyers for railway-trains in which a pipe or system of pipes is employed to receive the smoke and ciuders from the smoke-stack of the locomotiveengine and conduct the same to the rear, the object of my invention being to so improve the construction of the parts as to create a strong rearward air-current through the conveyer, and thus prevent any interference with the draft of the furnace and consequent rapid generation of steam.

To this end my invention consists in the combination, with a locomotive-engine having a rearwardly-inclined smoke-stack, of a horizontal conveying-pipe provided with an open :flaring or trumpet-'shaped mouth located at the rear of the base of the .smoke-stackvand facing toward the front of the locomotive, and arranged opposite to or in line with the discharge-orifice of said smoke-stack, but entirely disconnected therefrom, and adapted to re ceive the smoke, sparks, 8vo., discharged from said smoke-stack, the said aring mouth being open to the atmosphere,whereby when the train is in motion a strong inward and rearward air-current will be produced throughout the entire length of the conveying-pipe,which will carry with it all the smoke and sparks, which will thus pass through the conveyingpipe without resistance, the tendency being to increase rather than diminish the draft of the furnace, thus facilitating instead of retarding the generation of steam, as hereinafter more particularly set forth; and my invention furthermore consists in the combinations of devices and incertain details of construction, as hereinafter set forth and specifically claimed.

Fig. 2

In the said drawings, A represents a locomotive engine which is provided with a smoke-stack, B, inclined toward the rear, as shown, the exhaust nozzle or tip c being so located and inclined as to discharge the steam in the direction of thelongitudinal axis of the said smoke-stack.

C is a smoke-conveying pipe suitably supported and extending horizontally over theA locomotive, said pipe being connected at its rear end by means of a suitable joint, D, with another horizontal conveying-pipe, G, secured to the tender or car just behind the same, this pipe being connected, by ajoint similar t0 D, with a pipe on the next car, and so on th roughout the length of the train, from the rear end of which the smoke is discharged. This pipe G is provided at its front end with a wide flaring or trumpet-shaped mouth, b, located in the rear of the base of the smoke-stack B,

.and placed opposite to and in line with the and cause them to pass freely into the horizontal conveying-pipe C. The lower portion of the edge of the mouth bis shaped to fit the top of the boiler cl, to which it is secured at e,

and by extending the bottom of the mouth b @o down to the boiler the air is caused to rush in under the end of the smoke-stack, which prevents the ciuders from dropping down under the stack, the air acting equally all around the end of the same, as the diameter of the stack is much less than the width of the troughlike lower portion of the mouth b.

The conveyingpipe, with its flaring mouth,

is preferably located on one side of the center,

as seen in Fig. 2, in order to prevent it from interferingwiththcsteamdome,whistle,safety valves, Src., on the top of the-boiler, this arrangement also enabling the conveying-pipes to be located on one side of the raised or monitor7 tops of the cars, to allow of a clear passage under low bridges. The Haring mouth b, which faces toward the front, being open to the atmosphere and having no direct connection with the smoke-stack,it follows that when the train is in motion there will be a strong inward rush of air into the ilaring mouth b,

whereby a powerful inward and rearward aircurrent will be created throughout the entire length of the conveying pipe or pipes, which current will carry with it to the point of discharge all of the smoke, sparks, 85e., received from the smokestack,which will consequently meet with no resistance in their rearward passage, while the air-current will tend to increase the draft of the locomotive-furnace, thus accelerating the generation of steam, instead of retarding the same, as would occur if the smoke-stack were directly connected with the conveying-pipe C.

Another` advantage resulting from the construction shown is that when the train is at rest and the wind blowing in a direction at right angles to the length of the conveyingpipe the smoke, &c., will pass off to one side between the end of the smoke-stack and the edge of the ilaring mouth I) without having to pass through the said conducting-pipe C.

The interior ofthe smoke-stack is left clear and free from all obstructions, thus facilitating the discharge of the smoke, sparks, 85e., and giving a better draft with increased heat and no interference with the rapid generation of steam.

I is a branch pipe, which extends from the conveying-pipe G down between the tender and the front car of the train nearly to the ground, to discharge the sparks and cinders onto the road-bed, the conveyingpipe at its 4o junction with the pipe I being provided with comfort usually experienced by the passengers 'from the entrance of smoke and cinders is avoided, and the interior of the cars can consequently be kept perfectly clean. Furthermore, the extinction of any live sparks is insured, and the setting on re of bridges and other property along the line of the track by passing trains is thus eftectually prevented.

Vhat I claim as my invention, and desire to secure by Letters Patent, is

l. An improved smoke and spark conveyer for railway-trains, comprising the combination, with a locomotive-engine having a rearwardly-inclined smoke-stack, of a horizontal conveying-pipe provided with a flaring or trumpet-shaped mouth having its lower edge extended down to the boiler at the rear of the base of said stack, said mouth being in line with the discharge of the smokestack,where by it receives the smoke and sparks, substantially as herein described.

2. In a smoke and spark conveyer for railway-trains, the combination, with a locomotive engine having a rearwardly inclined smokestack, B, of a horizontal conveyingpipe, C, provided with a flaring or trumpetshaped month, b, entirely disconnected from the smoke-stack, and having its lower edge extending down to the boiler at the rear of the base of the said smoke-stack, and located opposite to and in line with the discharge-orifice of the said stack, and the exhaust-nozzle having its discharge end inclined to correspond with the inclination of the stack, substantially as and for the purpose described.

3. In a smoke and spark conveyer for railway-trains, the combination, with the horizontal smoke and spark conveying pipe G,

of a downwardly-extending branch pipe, I,

adapted to conduct the sparks and cinders to the ground, and having a detlector, m, and a guard, p, all operating substantially in the manner and Vfor the purpose set forth.

Vitness my hand this 7 th day of October, A. D. 1886.

ORRIN FITZGERALD, JR. In presence of- I. E. Tnscnnimennn, DWIGHT BALDWIN. 

